Leena Pitkänen

Summary

Affiliation: University of Helsinki
Country: Finland

Publications

  1. doi request reprint Structural comparison of arabinoxylans from two barley side-stream fractions
    Leena Pitkänen
    Department of Applied Chemistry and Microbiology, P O Box 27, FIN 00014, University of Helsinki, Finland
    J Agric Food Chem 56:5069-77. 2008
  2. doi request reprint Molecular characterization and solution properties of enzymatically tailored arabinoxylans
    Leena Pitkänen
    Department of Food and Environmental Sciences, PO Box 27, FIN 00014 University of Helsinki, Finland
    Int J Biol Macromol 49:963-9. 2011
  3. doi request reprint Behavior of polysaccharide assemblies in field-flow fractionation and size-exclusion chromatography
    Leena Pitkänen
    Department of Food and Environmental Sciences, University of Helsinki, P O Box 27, FIN 00014 Helsinki, Finland
    Anal Bioanal Chem 399:1467-72. 2011
  4. doi request reprint Comprehensive multidetector HPSEC study on solution properties of cereal arabinoxylans in aqueous and DMSO solutions
    Leena Pitkänen
    Department of Applied Chemistry and Microbiology, P O Box 27, FIN 00014 University of Helsinki, Finland
    Biomacromolecules 10:1962-9. 2009
  5. doi request reprint Functional and anionic cellulose-interacting polymers by selective chemo-enzymatic carboxylation of galactose-containing polysaccharides
    Kirsti Parikka
    Department of Food and Environmental Sciences, University of Helsinki, Helsinki, Finland
    Biomacromolecules 13:2418-28. 2012
  6. doi request reprint Challenges in analysis of high-molar mass dextrans: comparison of HPSEC, AsFlFFF and DOSY NMR spectroscopy
    Ndegwa Henry Maina
    Department of Food and Environmental Sciences, P O Box 27, FIN 00014 University of Helsinki, Finland Electronic address
    Carbohydr Polym 99:199-207. 2014
  7. doi request reprint Oxidation of polysaccharides by galactose oxidase
    Kirsti Parikka
    Department of Applied Chemistry and Microbiology, Faculty of Agriculture and Forestry, University of Helsinki, P O Box 27, FIN 00014 Helsinki, Finland
    J Agric Food Chem 58:262-71. 2010
  8. ncbi request reprint Synthesis and antioxidant activity of hydroxycinnamic acid xylan esters
    Pauli Wrigstedt
    Laboratory of Organic Chemistry, Department of Chemistry, University of Helsinki, PO Box 55, 00014 Helsinki, Finland
    J Agric Food Chem 58:6937-43. 2010
  9. ncbi request reprint Analysis of plant ribosomes with asymmetric flow field-flow fractionation
    Leena Pitkänen
    Department of Food and Environmental Sciences, University of Helsinki, P O Box 27, 00014, Helsinki, Finland
    Anal Bioanal Chem 406:1629-37. 2014
  10. ncbi request reprint An efflux transporter PbrA and a phosphatase PbrB cooperate in a lead-resistance mechanism in bacteria
    Anu Hynninen
    Department of Applied Chemistry and Microbiology, University of Helsinki, FIN 00014 Helsinki, Finland
    Mol Microbiol 74:384-94. 2009

Detail Information

Publications10

  1. doi request reprint Structural comparison of arabinoxylans from two barley side-stream fractions
    Leena Pitkänen
    Department of Applied Chemistry and Microbiology, P O Box 27, FIN 00014, University of Helsinki, Finland
    J Agric Food Chem 56:5069-77. 2008
    ..BFAX had a higher weight-average molar mass and larger hydrodynamic volume, the latter indicating less dense conformation than BHAX. Mn, Mw /Mn, Rh, and the Mark-Houwink a value were also determined for both arabinoxylans...
  2. doi request reprint Molecular characterization and solution properties of enzymatically tailored arabinoxylans
    Leena Pitkänen
    Department of Food and Environmental Sciences, PO Box 27, FIN 00014 University of Helsinki, Finland
    Int J Biol Macromol 49:963-9. 2011
    ..The possible heterogeneity of arabinoxylans complicated the interpretation of data describing the macromolecular properties of the enzymatically modified samples...
  3. doi request reprint Behavior of polysaccharide assemblies in field-flow fractionation and size-exclusion chromatography
    Leena Pitkänen
    Department of Food and Environmental Sciences, University of Helsinki, P O Box 27, FIN 00014 Helsinki, Finland
    Anal Bioanal Chem 399:1467-72. 2011
    ..To our knowledge, this is the first report on the characterization of xylans with AsFlFFF...
  4. doi request reprint Comprehensive multidetector HPSEC study on solution properties of cereal arabinoxylans in aqueous and DMSO solutions
    Leena Pitkänen
    Department of Applied Chemistry and Microbiology, P O Box 27, FIN 00014 University of Helsinki, Finland
    Biomacromolecules 10:1962-9. 2009
    ....
  5. doi request reprint Functional and anionic cellulose-interacting polymers by selective chemo-enzymatic carboxylation of galactose-containing polysaccharides
    Kirsti Parikka
    Department of Food and Environmental Sciences, University of Helsinki, Helsinki, Finland
    Biomacromolecules 13:2418-28. 2012
    ..The selectively carboxylated polysaccharides can be further exploited, as such, or in the targeted functionalization of cellulose surfaces...
  6. doi request reprint Challenges in analysis of high-molar mass dextrans: comparison of HPSEC, AsFlFFF and DOSY NMR spectroscopy
    Ndegwa Henry Maina
    Department of Food and Environmental Sciences, P O Box 27, FIN 00014 University of Helsinki, Finland Electronic address
    Carbohydr Polym 99:199-207. 2014
    ..To our knowledge, this is the first study utilizing these three methods in analyzing HMM dextrans. ..
  7. doi request reprint Oxidation of polysaccharides by galactose oxidase
    Kirsti Parikka
    Department of Applied Chemistry and Microbiology, Faculty of Agriculture and Forestry, University of Helsinki, P O Box 27, FIN 00014 Helsinki, Finland
    J Agric Food Chem 58:262-71. 2010
    ..After the oxidation, larger particles were present in the solution of spruce galactoglucomannan, but changes in its rheological properties were not observed...
  8. ncbi request reprint Synthesis and antioxidant activity of hydroxycinnamic acid xylan esters
    Pauli Wrigstedt
    Laboratory of Organic Chemistry, Department of Chemistry, University of Helsinki, PO Box 55, 00014 Helsinki, Finland
    J Agric Food Chem 58:6937-43. 2010
    ..It was found that ferulic acid esters of glucuronoxylan were more efficient antioxidants than those of arabinoxylan and that sinapic acid xylan esters were more efficient than their ferulic acid counterparts...
  9. ncbi request reprint Analysis of plant ribosomes with asymmetric flow field-flow fractionation
    Leena Pitkänen
    Department of Food and Environmental Sciences, University of Helsinki, P O Box 27, 00014, Helsinki, Finland
    Anal Bioanal Chem 406:1629-37. 2014
    ..It can also be used to study the protein composition of ribosomes that are active in translation at that particular moment. ..
  10. ncbi request reprint An efflux transporter PbrA and a phosphatase PbrB cooperate in a lead-resistance mechanism in bacteria
    Anu Hynninen
    Department of Applied Chemistry and Microbiology, University of Helsinki, FIN 00014 Helsinki, Finland
    Mol Microbiol 74:384-94. 2009
    ....